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Earth surface ch.2
Question | Answer |
---|---|
uniformitarianism | The geologic principal that the same geologic processes that operates today operate in the past to change Earth's surface. |
Erosion | The processed by water,ice,wind.and gravity moves by gravity weather particles. |
Weathering | The chemical in physical progress that breaks down rock and other substances. |
Mechanical Weathering | The type of weathering in which rock is physically broken into smaller peaces. |
Chemical Weathering | The process that breaks down rock through chemical changes. |
Abrasion | The grinding away of rocks by other rock participial carried in water and ice and wind. |
Frost Wedging | Process that splits rock when water seeps into cracks then freezes and expands. |
Oxidation | A chemical change in which a substance combines with oxygen as when iron oxidation forming rust. |
Permeable | Characteristic of a material that contains connected air spaces or pores that water can seep through easily. |
Soil | The loose weathered material on Earth's surface in which plamts can grow. |
Bedrock | Rock that is made up Earth's crust. |
Humus | Dark-colored organic material in soil. |
Fertility | A measure of how well soil supports a plants growth. |
Loam | Rich,Ferat soil that makes up about equal part of clay,sand,and slit. |
pH Scale | A range of values whose temperature used to indicate how acidic or basic a substance is. |
Soil horizon | A layer of soil that differ in color and texture from the layer above. |
Topsoil | The crumble topmost layer soil made up of clay and other minerals and humus. |
Subsoil | |
Decomposer | An organism that gets energy by breaking down waste and dead organism, and return raw material to the soil and water. |